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Atlas / NTSB / ERA25LA317

NTSB CAROL · Event

Event ERA25LA317

2025-08-25 Knoxville, Tennessee, United States Airport · EKQ None 1 aircraft Status: Completed

Registry · N4584C

FAA Aircraft Registry record.

Make / Model

CESSNA 170B

Year of manufacture

1953 · 72 years old at event

Engine

CONT MOTOR 0-300-A (145 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

20190318

ADS-B equipped

Yes — Mode-S A592BB

Registrant of record

ECO RESOURCES INC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain directional control during landing roll in a crosswind, which resulted in a runway excursion and a subsequent ground loop.

Factual narrative

The pilot of the tailwheel-equipped airplane approached the destination airport, and while in the traffic pattern there, the airplane encountered a crosswind. During the base-to-final turn, he was dissatisfied with the airplane’s altitude and performed a go-around. On the subsequent approach, he used rudder inputs to maintain alignment with the runway centerline. After touchdown, the airplane drifted right, and as it decelerated, he applied right rudder but was unable to maintain directional control. The airplane veered off the left side of the runway and ground-looped, coming to rest on the adjacent terrain. The airplane sustained substantial damage to the right wingtip and aileron. The pilot reported that there were no preaccident mechanical malfunctions or failures of the airplane that would have precluded normal operation. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).

  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained
  • Environmental issues-Conditions/weather/phenomena-Wind-Crosswind-Response/compensation

Verbatim from NTSB's published report. Source file NTSB_2025_ERA25LA317.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (runway excursion, go-around). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗